• Professional-grade crossover for high-performance audio systems
• 700W power handling capability
• Three units for versatile audio management
• Designed for professional audio equipment

• Bluetooth 4.1 technology for stable wireless audio streaming
• Supports multiple profiles: A2DP, AVCTP, AVDTP, AVRCP, HFP
• High-quality sound with SNR of 90dB, THD+N of -70dB, and DNR of 91dB
• Crosstalk reduction with -86dB for clearer audio

• High-Power Output: Delivers up to 50W per channel (stereo) and 100W for subwoofer, providing a robust sound experience.
• Bluetooth 5.0: Latest Bluetooth version for a stable, high-quality audio connection.
• Dual Input Options: Supports Bluetooth and AUX input, giving you flexible connection options.
• TPA3116D2 Chip: High-performance power amplifier chip for clear, distortion-free audio.
• Wide Compatibility: Works with 4-8Ω speakers, making it versatile for various audio setups.

• High-quality TDA7379 power amplifier chip for clear stereo sound
• Dual-channel output with 38W+38W power for balanced audio
• Compact board size, ideal for DIY audio projects
• Wide power supply range: DC 9-17.5V for flexible use

The PT2313 Digital Tone Board Pre-Amplifier features the latest PT2313 chip and MCU design for superior audio performance. Ideal for enthusiasts and professionals. Key features include:

• Power supply: DC 9V-24V single power supply
• 3 audio input groups, 2 audio output groups
• Full remote control
• LCD display

Enhance your audio projects with our Stereo Tone Board featuring a built-in echo effect. This tone board is perfect for adding depth and dimension to your sound, making it ideal for various audio applications. Experience high-quality sound and easy integration with your existing setup.

Key Features:

• Stereo tone board design
• Built-in echo effect
• Easy integration with audio systems
• High-quality sound enhancement

Enhance your subwoofer's performance with the Low Pass Filter Board Active for Subwoofer Bass NE5532. This filter board, model GV-SUB01, operates with an AC double power supply ranging from 9V to 15V, and features a blue LED indicator. Its frequency tuning range of 22Hz to 210Hz ensures excellent bass performance without vocals.

• Model: GV-SUB01
• Power Supply: AC double 9V - 15V
• Blue LED Indicator Light
• Frequency Tuning Range: 22Hz - 210Hz (No vocals)

Package Includes: 1 x Low Pass Filter Board Active For Subwoofer Bass NE5532

CT14 Micro 4.2 Bluetooth Stereo Amplifier Module

This high-quality CT14 Micro 4.2 Bluetooth Stereo Amplifier Module is designed for those who demand the best in audio performance. Ideal for a variety of DIY audio projects, this compact module delivers powerful sound in a small package.

• Material: Electrical components
• Operating voltage: 3.7-5V DC
• Size: 40 x 20mm
• Power: 3W

Package Includes: 1x CT14 Micro 4.2 Bluetooth Stereo Amplifier Module

• High Power Output: Delivers 400W+400W stereo output or 800W mono output
• Stable Voltage: Supports dual AC24-36V power input
• Premium Components: Built with Toshiba high-performance chips for clear and powerful sound

Enhance your audio projects with the Microphone Amplifier Board XH-M273 PT2399 NE5532. Key features include:

• Product Name: Karaoke Reverb Board
• Product Model: XR-M273
• Input Voltage: DC12-24V
• Reverberation Chip: PT23999
• Microphone Input: 2
• Knob Spacing: 24MM
• Microphone Spacing: 17.6MM
• Output Channel: 2 channels
• Frequency Response Range: 25HZ-17KHZ
• Compact Size: 117 x 53MM
• Weight: 75 grams

Perfect for karaoke systems and audio enhancement projects, providing clear and powerful sound quality.

The TDA7293 100W Digital Audio Amplifier is a high-power, single-channel amplifier designed to deliver exceptional sound quality. Ideal for home audio systems and DIY audio projects, this amplifier provides reliable performance and robust output power.

Key Features:

• Chip: TDA7293
• Power Supply: AC 12V-32V
• Channel Type: Single Channel
• Output Power: 100W
• Load Type: 4-8 Ohm Speaker
• Input Impedance: 100K Ohm
• Frequency Range: 20Hz-20KHz
• Size: 60mm x 45mm x 35mm

• Bluetooth Version: 5.0
• Operating Voltage: 3.7V ~ 24V DC
• Transmission Distance: Up to 15 meters (visible and unobstructed)
• Signal to Noise Ratio: ≥90dB

Enhance your bass sound with the TPA3116 100W Subwoofer Amplifier Board. This high-performance amplifier features preamplifier, bass crossover, and bass volume control, delivering powerful and clear bass output for your audio system.

Key Features:

• High-performance TPA3116D2 digital power amplifier chip
• DC 12-24V power supply
• Up to 100W bass output
• Wide operating voltage with power-saving design
• Preamp, bass crossover, and volume control

Enhance your audio experience with the SANWU® YDA138 Bluetooth Digital Audio Amplifier Board. This Class D stereo amplifier offers high-quality sound and efficient performance, making it perfect for various audio applications.

• Amplifier Chip: YDA138
• Operating Voltage: 8.5~14VDC (polarity protection included)
• Recommended Power Supply: 12V DC, 2A current
• Output Power: 2x10W (8 ohms), 15W+15W (4 ohms)
• Output Impedance: 4~10 Ohm
• Model: SW-HF187
• Size: 38x60mm

• High Output Power: 15W x 2 output for clear and powerful audio.
• Wide Voltage Range: Operates within a DC 8-18V input voltage range.
• Low Static Current: 8mA static state for energy-efficient operation.
• High Efficiency: ≥90% efficiency for better performance.

• Uses TPA3116D2 chip for efficient amplification
• Supports DC12-26V supply voltage
• Output power up to 120W*2
• High signal-to-noise ratio of 100dB